Upgrading to Symfony 2.6 causes issue with ApplicationSonataUserExtension

Question

I am currently trying to upgrade to Symfony 2.6. Everything went smoothly except that I got this error after running composer.phar update

 [Symfony\Component\Debug\Exception\ContextErrorException]                                                                                                                                                  
  Warning: Missing argument 1 for Symfony\Bundle\FrameworkBundle\DependencyInjection\Configuration::__construct(), called in src/Application/Sonata/UserB  
  undle/DependencyInjection/ApplicationSonataUserExtension.php on line 23 and defined  

However, there is no __construct() function in Symfony\Bundle\FrameworkBundle\DependencyInjection\Configuration ...

The code I have in ApplicationSonataUserExtension.php is :

<?php

namespace  Application\Sonata\UserBundle\DependencyInjection;

use Symfony\Bundle\FrameworkBundle\DependencyInjection\Configuration;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\Loader;

/**
 * This is the class that loads and manages your bundle configuration
 *
 * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html}
 */
class ApplicationSonataUserExtension extends Extension
{
    /**
     * {@inheritDoc}
     */
    public function load(array $configs, ContainerBuilder $container)
    {
        $configuration = new Configuration();
        $config = $this->processConfiguration($configuration, $configs);

        $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
        $loader->load('services.yml');
    }
}

I have really no clue...

Answer 1

Unlike Symfony 2.5, 2.6 actually has __construct() method in Symfony\Bundle\FrameworkBundle\DependencyInjection\Configuration, and its argument represents debug mode, according to this. So, adding bool variable to Configuration should solve the problem.

$configuration = new Configuration(TRUE); //or FALSE, if it's in prod

To get debug mode easily enough automatically, you could use something like:

$env = $container->getParameter("kernel.environment");
$debug = ( $env === 'dev' ) ? TRUE : FALSE;